Clinton Township, Mich. — RJL Systems announced today its new, state-of-the-art BC 4.0 BIA software for the use of Bioelectrical Impedance Analysis in human body composition assessment. With the addition of three new biomarkers, BC 4.0 provides health practitioners a more thorough understanding, and in-depth look, of a patient’s actual body composition.

“In a similar way physicians utilize complete blood count (CBC) values to garner information about what is in a patient’s blood, BIA technology is used to gather information about what makes up a patient’s body,” said Kerrie Saunders, Director of Education for RJL Systems.

The updated BC 4.0 software builds upon the measures previously found in BC 3.0 including Fat, Total Body Water, Intracellular Water, Extracellular Water, Lean Dry Mass and Basal Metabolic Rate, with the updated version now including Bone Mineral Content (BMC), Lean Soft Tissue (LST) and Skeletal Muscle Mass (SMM). The following provides a short summary on the new measures:

Skeletal Muscle Mass (SMM)

SMM is a measure of muscle mass required for posture and movement.

Bone Mineral Content (BMC)

BMC is an measure of the mineral content of the bones.

Lean Soft Tissue (LST)

LST is the measure of organs, muscles, connective and supportive tissues and Total Body Water.

Note: If you have purchased a Quantum BIA instrument or BC software from us within the past 12 months, you are eligible to upgrade to BC 4.0 for no charge. Your initial update subscription period will be prorated based on your original purchase date, but you will receive a minimum of 6 months.

“The new software enhances any practice and can be used with any RJL BIA model, as all of our devices deliver safe, accurate and reliable resistance and reactance measurements. RJL is proud to provide the best body composition evidence available, for our country’s pursuit of evidence-based medicine,” said William Pauly, Director of Global Sales for RJL.

The measures derived from RJL BIA help physicians, dietitians and educators target strategies – not for the “average patient” – but designed specifically for the individual. For example, BIA technology measures whether water and fat values are outside of the range of normal: information a practitioner can use to develop a personalized and effective strategy to manage a healthy body composition.

“The progressive Food & Fitness report sections, achieving the first-ever CPT Code (0358T) for BIA by the American Medical Association, our new professional education series and now the release of BC 4.0 software, are all part of the RJL Systems commitment to excellence for our customers,” said Michael Liedtke, Director of Business Development.

For more information on RJL BIA devices, software, and education, please visit / or call William Pauly at (800) 528-4513 x106.